MasterClass - Christina Aguilera - Singing
 
https://www.masterclass.com/classes/christina-aguilera-teaches-singing

Your New Voice Teacher
Christina teaches you how to expand your range, find your voice, and master the techniques that have earned her six Grammy Awards. You'll learn warm-up exercises, breath control, vibrato, her signature growls, and hear Christina break down her biggest hits. There has never been a singing class like this before